<title>trr file format</title>
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<h2>trr file format</h2>
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<h3>Description</h3>
Files with the trr file extension contain the trajectory of a simulation. 
In this file all the coordinates, velocities, forces and energies are 
printed as you told GROMACS in your mdp file. This file is in portable binary 
format an can be read with <a href=gmxdump.html>gmxdump</a>.
<PRE>
% <a href="gmxdump.html">gmxdump</a> -f traj.trr
</PRE>
or if you're not such a fast reader:
<PRE>
% gmxdump -f traj.trr | more
</PRE>

<p>
You can also get a quick look in the contents of the file (number of 
frames etc.) using:
<PRE>
% <a href="gmxcheck.html">gmxcheck</a> -f traj.trr
</PRE>
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